A fireman tosses his 0.98-kg hat onto a peg, where it oscil-lates as a physical pendulum (...

A fireman tosses his 0.98-kg hat onto a peg, where it oscil-lates as a physical pendulum (Figure). If the center of mass of the hat is 8.4 cm from the pivot point, and its period of oscillation is 0.73 s, what is the moment of inertia of the hat about the pivot point?

FIGURE